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How much energy is released when 30

Chemistry

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How much energy is released when 30.0 g of acetone, (CH3)2CO, vapor at 100.0°C 
is cooled to -50.0°C? Acetone has melting point of -94.5°C, a boiling point of 
56.5°C, an enthalpy of vaporization of 31.3 kJ/mol, and an enthalpy of fusion of 
5.7 kJ/mol. The molar heat capacity of the liquid is 125.5 J K-1 mol-1 and for the 
vapor is 75.0 J K-1 mol-1.